US3051627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized chymotrypsin solution
Assignee: Armour Pharmaceutical Co
•
Filing: 1960-08-18
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Granted: 1962-08-28
•
Expires: 1980-08-18
Abstract
No abstract record available.
Inventors
- 👤 Paul E Bradford
- 👤 Charles W Damaskus
- 👤 James B Lesh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:47
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A STABILIZED PREPARATION OF ALPHA CHYMOTRYPSIN CHARACTERIZED BY CONTAINING FROM 0.5 TO 15 PARTS BY WEIGHT OF AN AMINO ACID IN ITS FREE ACID FRORM, SAID FREE AMINO ACID BEING SELECTED FROM THE GROUP CONSISTING OF GLYCINE, METHIONINE, VALINE, THREONINE, SERINE, PROLINE, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
45 words
A STABILIZED PREPARATION OF ALPHA CHYMOTRYPSIN CHARACTERIZED BY CONTAINING FROM 0.5 TO 15 PARTS BY WEIGHT OF AN AMINO ACID IN ITS FREE ACID FRORM, SAID FREE AMINO ACID BEING SELECTED FROM THE GROUP CONSISTING OF GLYCINE, METHIONINE, VALINE, THREONINE, SERINE, PROLINE, AND MIXTURES THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |